Rin Kaenbyou (also known as Orin) is a character from Touhou Project, first appearing in her cat form as the midboss of Subterranean Animism's stage 4 and 5, and later appearing in her humanoid form as the game's stage 5 boss. She is one of Satori Komeiji's pets, along with her old friend Utsuho Reiuji.

Rin is a kasha, a cat-like demon who steals corpses, which she uses to fuel the former Hell of Blazing Fires. Before the events of Subterranean Animism, after Utsuho obtains the power of nuclear fusion from Kanako Yasaka, Rin drove the vengeful spirits of former hell to the surface in the hopes that it would attract the attention of a youkai powerful enough to stop Utsuho, but was surprised to see a human answer her call instead.

In M.U.G.E.N, Rin Kaenbyou has been made by orin_project, Waibashi, Sukuemon, Hetyo and BIYO. Sukuemon's and Hetyo's versions attempt to imitate the style of Immaterial and Missing Power and Touhou Hisoutensoku, respectively, with BIYO's version being loosely based on Hisoutensoku; orin_project's and Waribashi's versions opt for more traditional gameplay styles that are less focused on projectiles.

Orin_project's version

Abandoning her spell cards in favour of a completely different set of skills, Orin can now summon cyclones, create shockwaves by meowing and punch the opponent really, really hard. Likely as a result of her living below ground, Orin isn't particularly great in the air, with her aerial Normals being notably weaker than her grounded ones and the impact of gravity having a greater effect on her.

Waribashi's version

This version of Rin features realistically-proportioned sprites in contrast to most other Touhou characters, and carries a more traditional four-button gameplay style to go with them. Some of Rin's spell cards from Subterranean Animism appear as part of her moveset, though instead of filling the screen with projectiles, they've been toned down to fit more inline with her melee-centric playstyle.